Configure Vlan Subvlan - Extreme Networks ExtremeWare Command Reference Manual

configure vlan subvlan

configure vlan <super-vlan name> [add | delete] subvlan <sub-vlan name>
Description
Adds or deletes a sub-VLAN to a super-VLAN.
Syntax Description
super-vlan name
add
delete
sub-vlan name
Default
N/A.
Usage Guidelines
• All broadcast and unknown traffic remains local to the sub-VLAN and does not cross the sub-VLAN
boundary. All traffic within the sub-VLAN is switched by the sub-VLAN, allowing traffic separation
between sub-VLANs (while using the same default router address among the sub-VLANs).
• Hosts are located on the sub-VLAN. Each host can assume any IP address within the address range
of the super-VLAN router interface. Hosts on the sub-VLAN are expected to have the same network
mask as the super-VLAN and have their default router set to the IP address or the super-VLAN.
• All traffic (IP unicast and IP multicast) between sub-VLANs is routed through the super-VLAN. For
example, no ICMP redirects are generated for traffic between sub-VLANs, because the super-VLAN
is responsible for sub-VLAN routing. Unicast IP traffic across the sub-VLANs is facilitated by the
automatic addition of an ARP entry (similar to a proxy ARP entry) when a sub-VLAN is added to a
super-VLAN. This feature can be disabled for security purposes.
IP multicast traffic between sub-VLANs is routed when an IP multicast routing protocol is enabled on
the super-VLAN.
Example
The following command adds the sub-VLAN vsub1to the super-VLAN vsuper:
configure vlan vsuper add subvlan vsub1
History
This command was first available in ExtremeWare 6.1.
Platform Availability
This command is available on all platforms.
ExtremeWare Software 7.3.0 Command Reference Guide
Specifies a super-VLAN name
Specifies to add the sub-VLAN to the super-VLAN
Specifies to delete the sub-VLAN from the super-VLAN
Specifies a sub-VLAN name.
configure vlan subvlan
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